Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b39bd6a866445d…

MALICIOUS

PDF

36.2 KB Created: 2020-08-18 16:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff9393fa2968b8e2f9146c53c9d7c193 SHA-1: 3a097fb934185c83645f498b5a9c64d9f93dc86c SHA-256: f2b39bd6a866445d47dc5a66490f44dac3c3735d88c7c1d7cd981c8d42143035
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=gana+baja+de+video'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify-hosted PDFs. The document body, though partially corrupted, contains the same malicious URL and a reference to 'Gana baja de video', suggesting a lure for users to download content. The primary intent appears to be directing users to the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=gana+baja+de+video In PDF document text
    • http://rutos.artsforactfineartauction.com/uploads/1/3/0/7/130776433/penaf.pdfIn PDF document text
    • http://zenivevi.balletcaliente.com/uploads/1/3/1/3/131379578/kuzuwazitebavine.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/15166932589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/60965241653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0114/1657/files/organisme_pengganggu_tanaman_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1088/2727/files/bbc_iplayer_free_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1087/5815/files/90169494622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3717/5456/files/what_is_mrt._exe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1573/9304/files/setting_advertising_objectives.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/mobadadinipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3219/0876/files/english_phonetic_symbols_in_khmer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0687/6055/files/appchina_free_ios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8515/9845/files/malumunal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/mafovunukilini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6756/3418/files/galowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9321/2827/files/nibepaxaf.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F16 4820 bytes
SHA-256: 78f14a43bb616516718547e2c60e1aac6dc15f09af26a633f15dfe7886bb3af1
font_01_sfnt_off00005fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA1 10820 bytes
SHA-256: 6abee78d801f318ae0fec480d9b2bda3d9ee1d8cdf8e551cf7e33051285a4692

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